Before you start throwing a lot of money at this problem, check for an exhaust leak. A loss of exhaust back pressure will also cause the delayed shifting behavior you describe.
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Originally Posted by 240diowa
have noticed that the engine speed has been increasing before shifting from from 2 to 3 and when it shifts it shifts harder. Been looking looking at the posts and it seems it may be the vacuum regulator but wasn't sure since most of the posts cover the 3 to 4 shift. By adjusting the vaccuum regulator does that affect all shift points or just the 3 to 4? I don't live close to a dealer and was wondering if I can use another type or brand of trans. fluid other than the mercedes synthetic? Appreciate the help
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2008 E350 4matic / Black/Anthracite
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Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black
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